I'm just going to answer the question.
On your wiki, go to Project:UnusedFiles (or something else in the project namespace). Enter this (or something else, so long as people know what the page is for):
This is a maintenance page that contains certain files to keep them from appearing in [[Special:UnusedFiles]]. These include:
*CSS-only files
*Necessary template files
*Audio files
<div style="display:none">
</div>
Just put your files within the hidden div element. Hope this helps.
Edit: just looked through the old discussion and realized you may not actually be asking for help. Disregard this message if that's the case.